Carbon-dioxid gage.



E. A. CUNNINGHAM.

CARBON DIOXID GAGE.

APPLICATION FILED SEPT. a, 1913.

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5 m mm a l N 1 T 1, m 1 W I E. A. CUNNINGHAM. CARBON DIOXID GAGE.

APPLICATION FILED SEPT. 6," [913 1,1 1 1,565. Patented Sept. 22, 191;

2 SHEETS-SHEET 2.

, FIG.5

INVENTOR 641% 11 W 9 MUM "(T :1 )3 AL; threaned ends.

. l '0 mm? (The up ,Ier) e (1 thereof using 3 which 1i: caustlc potash 01' other s 2 body for whereby the flow of w chamber 2 15 n opera: W5 ine. unuaoei .ie to time to per Del 01' chamber 2-.

provided. Wfih a screw intn w: 1011 21 smaller plug 7 secmsrl 0 enable the inm bzzr 2 being nnnecl re fsnnd necessary or ch mterva'is as ovidmi u its lengthwise 'Wihin the a? the entez'mg and 0f tbs chamber 2 11g ases'tc 'riSl up t 12 -ea genta, quark within the chamber.

3: fine er stack (not "b the waste gases (0f which the mixture of gases is formed. An-' other assage 11 in the valve casing 3 is connecte by the tube 12 with theinlet opening 13 on the graduated mercury gage 14 or like device whereby the degree of vacuum formed in the chamber 2 is indicated and the percentage of carbon dioxid in the gases therefrom determined. The gage 14 18 also rovided with a gas outlet opening whic is connected by a small tube 15 with the inlet opening of the recording vacuum gage 16 by which the use of which a continuous record is made of variations of fluctuations in the vacuum produced in the chamber 2 during the operation of the apparatus, and the time intervals in which the apparatus is in opera- Ztionare indicated.

An ejector 17 such as a filter pump or equivalent suction producing mechanism is connected to the gas outlet passage 18 in the cock casing 3 in order to increase the velocity of the gases flowing into the chamher 2 and cause a stream of the ases to rapidly pass through the'chamber w on the cock 4 isturned to the required position as is done to extend at right angles to each other and at regulated time intervals in the continued operation of the apparatus.

The provision of the ejector enables the ases to be caused to flow through the chamer 2 at-suc'h a high velocity that the absorption of carbon dioxid (CO during the free fi ow ofthe' gases will be so small as to be negligible.

connects with one end of a passage or port 19 in the valve body and the passage 19 merges into one end of a radial assage 20 also in the valve body 3. The 000 4 is provided'with passages 21 and 22 .which are connected together and which cooperate. to connect the 1nlet'9 in the valve body with the passage 8 leading through the tube 7 into the chamber 2. The cockis also provided with connected passages 23 and 24 arranged to connect the outlet opening 25 in the valve body 3 alternately with the outlet 18 leadin to the ejector 17 and the' outlet -11 .whic

leads throughthe pipe 12 to the mercury e14 i referably, the cock 4 is provided with a stem'26; having a spur pinion 27 keyed or otherwise secured to turn therewith, which meshes with the mutilated gear 28 by which the pinion 27 and cock 4 are intermittently turned. .-As will be seen by reference to Figs.

2 and 3, the gear 28 is mounted upon a shaft 29 which'is secured in bearings formed on the bracketBO and has a worm wheel 31 ecured thereon at an intermediate point in its length. The worm wheel 31 meshes with the worm 32 on the'shaft 33, which also is mounted in bearings on the bracket and the shaft 33 is connected in any desired manner with an electric motor or other suitable prime mover (not shown).

The graduated mercury gage 14 hasa wire 1 34 forming a terminal. extending into the gage through the upper end thereof, this wire being arranged to be adjusted lengthwise Within the glass tube forming part of the gage 14, and the bottom of the gage is connected to one end of a wire 35. The wires 34 and 35 are connected through a battery 36 to the relay 37 and this relay is connected by wires 38 and 39 through a battery 40 with an electric bell 41 so thatwhen the circuit is broken through the wires 34 and ,35, as is done by a change in the extent of the 'vacuum within the gage 14; therelay 37 is actuated so as to complete the circuit through the wires 38 and 39 and ring the bell 41 and in this way sound an alarm or signal audibly indicating the carbon dioxid content of the gases is such as requires attention.

When for any reason itis desired to 'operate the apparatus to only determine the amount of proportion of carbon dioxid in the mixture of gases at irregular or infrequent intervals, the recording gage and cook turning mechanism and the signaling apparatus may be dispensed with and in such case" a handle 42 such as is shown by dotted lines in Figs. 3 and 4 may be provided on the cock 4 by which the cock is turned manually to admit andconfine a given volume of gases in the chamber 2 while the vacuum is being formed therein and the carbon dioxid con- The gas outlet 18 in the body 3 of the valve tent determined.

The operation of m will now be describe 5 assembled,- preferably as shown, and the improved apparatus The apparatus is JaamberHQ 1s supplied with a quantity of mj caustic potash or other reagent or with a solid absorbent material staturatedwith a e opening in the lower end i started to operate and t e motor which drives} the shaft'33- is started. jjLWhen the motor causes theshaft 33 to rotate, the worm'32 thereonturnsthe Worm'wheel 31 onthe shaft 29 and through this shaf trotates the intermittent gear 28.] The intermittent gear I is periphery with a series of sets of teeth-43, 44 and 45. Assuming the pinion 27 to have 16' teeth rovided at separated intervals j on its and the'gear 28 to have a pitch line equiva lent to that of agear with 84 teeth,the gear ratio will be 4 to 1 and 'th 12 teeth in the set 43 will rotate the pinion 27 and stem 26 through an angle of 270 degrees and, the 1 sets 44 and 45, which have 2 teeth each, will each rotate the pinion 27 and stem through an angle of 45 degrees. The space between on the mutilated gecnQS c 13.111161 that the pinion i onary tor a time will elapse and clisengu pinion and a time interval o'l 44$) conus then classes during which aes and lisengages the pinion minute interval then again starts. i ay the pinion 27 is related by chrough an angle of 270 degrees to rest. @uring' the next 20 second also is turned by 'ougn an angle of 45 degrees. seconds it remains stationary and also ruriher rotated through an angle In she nextintervul of L stationary and is also teeth 43 and moved 0 degrees.

sengages from the teeth re of teethso next ongod from the set of teeth in the position shown in "111d during the major porwill be clrawn, 1e sciiion of the cjecto: 1?, into umber The pinion is the continuecl rota ed geu nslly brings the 7 into engu 'enicut with the the pinion further, oi (lcgrees. erval of ahoui l seconds 2'- 'chc set cliseng'ages from tl' of teeth is to eninion 27, the openclosed anal in ,lhis of irhon clioxicl hin the chamber 2. s then clupses (lurcool:

' 2 with the 1e sage +3 curl the cilill ropes-teal the apparatus the carbon sdjustecl therein so as to he on a level with any convenient guduution such as the ten per cent. graduation thereon and when in such position make contact with ihe inercury in the gage when the gage reads ten pcr cent. or over. hen the mercury engages with the end of the lend-Wire 3% the circuit through the Wires and 35 completed which in turn causes closing of the relay circuit so as to holcl the relay 37 in disengaged position. In such position the Contact on the relay which completes the circuit is hclcl to keep such circuit in open position. Should (hiring the operation of the gage, the mercury column become lower than the ten per cent. grmluatiou or other point at which the movable terminal as has been set, the circuit formed by the lecdwires 38 and 39 through the hell so is closed so as to cause the bell to ring and in this Way sound an alarm.

After the 21050113131011 of carbonic clioxid has taken place in the chamber 2 this chamher is connected with the mercury gage 14, 7

and, through the gage 1c and tube 15, with the recording gage 16 so that the amount of vacuum produced in the chamber 2 will be indicated upon the gage ii. The amount of vacuum will also be recorded upon the chart forming part of the recording gage l6 and form a permanent rccorcl showing the variotions in the amount of vacuum and the time intervals (luring which a vacuum is formed. and the carbon clioxicl consent of the gases is determined.

The advantages of invention will be apparent to those skilled inthe art. By its use on untcchnical fireman can readily cleicrininc ihe quantit carbon clioxirl conteinecl in the gases from the boiler furnace to (he stuck and, when properly instructed beforehand, can modify the firing of the furnace in accordancewith tho result shown by the recording gage.

33y drawing the gases, to be examined, at high speed through a vessel containing solicl onus-Vic potash or other suitable reagent or a solid absorbent mucriul suturuted with a suitable reagent, and by 'ficinpornrl stopping the flow of uses through the coniuincr 21ml at tho some time conne in vessel to a vacuum gage or other suitable measurclevice the carbon clioxirl in the gases is co to be absorbed and. on hcing hsorhecl um C' of the The velocity of the es passing ile absorption vessel or container 1 that the slight amount of absorption colon place during the time interval in which. the

.85 terrupted and carbon dioxid gasis absorbed mixture of gases are permitted to flow freely thgough the absorpti0n-chamber is negli- 'ile. b Modifications 'in'the construction and ar rangement of the parts may be made without departing from my invention as defined in the appended claims. =-'1he means employed in. actuating the cock may be other than those shown. The form of the vacuum gage may be varied. The recording gage may be any of the various known typesgand the means: for sounding an alarm may be I a whistle instead of the bell as shown. -.I,claim.: a 1. A.-carbon dioxid gage comprising an absorption chamber containing a reagentto absorb lcarbon dioxid gas, meansfor conducting waste gases through said chamber at a velocity substantially preventing absorptionqf carbon dioxid gas therein, means for interrupting the flow of gases therethrough,

-. and jmeansforindicating the vacuum produced insaid chambervwhen the flow'of gases is interrupted and'carbon dioxid gas is absorbed tothereby indicate the carbon dioxidcontent of the gases v :2. A carbon dioxid gage comprising an absorption chamber containing a reagent to absorb, carbon :dioxid gas, means for conductingwaste gases through said chamber at a; velocity substantially preventing absorption of-carbon dioxid gas 'thereirhimeans for- ;irit'erru ting the flow of gases, therethrough means or vindicating ,the vacuum produce in'said chamber when the flow of :gases is into; thereby indicate' thecarbon dioxid content iofrthe gases, and means ifor registering thetamount of vacuum produced during the rr'uptions in the flow of gases. '3.-.'A carbon dioxicl gage comprising an absorption chamber containing a reagent to absorb carbon dioirid gas, means for con- I ducting waste gases through said chamber at a velocity substantiallyfpreventmg absorption of carbon dioxid gas therein, means for interrupting the flow of-gases therethrough, and rneans .for 'registering the amount of vacuum produced .during the interruptions in the flow of gases to thereby determine the carbon dioxid content of the gases.

4. A ,carbon dioxid gage comprising anmeans for registering the amount of vacuum produced during the interruptions in the flow-of gases, said means being arranged to indicate time intervals such vacuums are registered.

=. :5. A carbon dioxid gage comprising an absorption chamber containing a reagent to absorb carbon dioxid gas, means for conducting waste gases through said chamber at a velocity substantially preventing absorption of carbon dioxid gas therein, means for interrupting the flow of gases therethrough, means for. indicating the vacuum produced in said chamberv when the flow of gases is interrupted; and carbon dioxid gas is absorbed to thereby indicate the carbon dioxid contentgofthe ,gaseswithin the chamber, and

means for registering the amount of vacuum produced during the interruptions in the flow'of gases. a

.,-; A carbonvdioxidgage comprising an absorption chambenc'onta ning a reagent to absorb carbon diox id 'ga s,"-means for conducting waste gasesthrough said chamber at a. velocity substantially preventing absorp tion of carbon diox idgas therein, andmeans :Eor intermittently interrupting. the flow of gases through said chamber to permit ab- 5 sorption of carbon dioxid gas and the formation of avacuum in said chamben'toftherebydetermine the percentage of carbon dioxid in said Waste gases.

- In testimony whereof, I have hereunto set my hand.

' EDWARD A.

Witnesses: I l T. H. LEEWRIGHL':

Josnrn W. finanrrnn.

cunmNoHAM. 

